Will Polyaluminium Chloride Cause Pipe Blockages?

Regarding the purification of sewage, polyaluminium chloride products play a significant role. However, some claim that using polyaluminium chloride products can easily cause pipe blockages. What is the reason for this? Is it a normal occurrence, or does polyaluminium chloride itself have inherent process issues? Let us discuss this together.

Why does pipe blockage occur when using polyaluminium chloride? There are two primary reasons. Firstly, the quality of the polyaluminium chloride product may be substandard. Purchasing inferior products to save money, or the inherent instability of polyaluminium chloride products on the market, can both lead to poor quality. Secondly, prolonged use of the pipes combined with significant scale buildup can also cause blockages. So, what should we do when pipe blockages occur?
 

If the blockage stems from substandard polyaluminium chloride, the product must be replaced immediately. Opt for polyaluminium chloride with minimal water-insoluble content to prevent future blockages. If the blockage results from prolonged pipeline use, the pipeline itself may need replacing. Consider switching to stainless steel materials or applying anti-corrosion treatment to the pipeline's inner walls. These measures can significantly reduce the likelihood of blockages.

Indeed, when procuring polyaluminium chloride, one must be vigilant against purchasing low-cost, inferior products. Such materials exhibit higher water solubility. Elevated water solubility leads to residue accumulation within pipelines during filtration. Over time, this accumulates and causes pipe blockages. Therefore, when selecting polyaluminium chloride, opt for products with low water-insoluble content and reliable suppliers. This approach minimises pipe blockage issues. Quality should be the fundamental criterion when choosing polyaluminium chloride; price alone is insufficient.

The high charge density of polyaluminium chloride effectively removes trace toxic substances and heavy metal ions from wastewater. It delivers stable water treatment performance while minimising equipment corrosion. Premium-grade polyaluminium chloride exhibits a clear, translucent colour rather than a dull appearance. Generally, products with over 30% aluminium content are considered superior. Additionally, national standards can be used to assess quality. The primary indicator of polyaluminium chloride product quality is aluminium oxide content; higher concentrations signify superior quality. Therefore, prioritising quality remains crucial when selecting polyaluminium chloride products.